HeartWare (HTWR +5.5%) beating strongly after the FDA says the firm's blood pump appears to aid...

|By:, SA News Editor

HeartWare (HTWR +5.5%) beating strongly after the FDA says the firm's blood pump appears to aid patients with severe heart failure. However, the agency raises safety concerns about clotting rates and stroke, and says the clinical trials may have missing data and are difficult to compare. An FDA advisory panel is due to vote on the device on Wednesday.